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  1. using System;
  2. using System.Text.RegularExpressions;
  3.  
  4. public class Test
  5. {
  6. 	public static void Main(){
  7.  
  8. 		string[] tests = {
  9. 			// matching
  10. 			"2",
  11. 			"1 AND 2",
  12. 			"12 OR 234",
  13. 			"(1) AND (2)",
  14. 			"(((1)) AND (2))",
  15. 			"1 AND 2 AND 3",
  16. 			"1 AND (2 OR (3 AND 4))",
  17. 			"1 AND (2 OR 3) AND 4",
  18. 			" ( 1    AND ( 2 OR  ( 3 AND    4 )  )",
  19. 			"((1 AND 7) OR 6) AND ((2 AND 5) OR (3 AND 4))",
  20. 			"(1)",
  21. 			"(((1)))",
  22.  
  23. 			// should fail
  24. 			"1 2",
  25. 			"1(2)",
  26. 			"(1)(2)",
  27. 			"AND",
  28. 			"1 AND",
  29. 			"(1 AND 2",
  30. 			"1 AND 2)",
  31. 			"1 (AND) 2",
  32. 			"(1 AND 2))",
  33. 			"(1) AND 2)",
  34. 			"(1)() AND (2)",
  35. 			"((1 AND 7) OR 6) AND (2 AND 5) OR (3 AND 4))",
  36. 			"((1 AND 7) OR 6) AND ((2 AND 5 OR (3 AND 4))",
  37. 			""
  38. 			};
  39.  
  40. 		string re = @"(?x)^
  41. 			\s* (?: (?<open> \( ) \s* )*
  42. 			\d+
  43. 			\s* (?: (?<-open> \) ) \s* )*
  44. 			(?:
  45. 				\s+(?:AND|OR)\s+
  46. 				\s* (?: (?<open> \( ) \s* )*
  47. 				\d+
  48. 				\s* (?: (?<-open> \) ) \s* )*
  49. 			)*
  50. 			(?(open)(?!))
  51. 			\z";
  52.  
  53. 		foreach (string str in tests){
  54. 			Match match = Regex.Match(str, re);
  55. 			if (match.Success)
  56. 				Console.WriteLine("matched: '{0}'", str);
  57. 			else
  58. 				Console.WriteLine("failed:  '{0}'", str); 
  59. 		}
  60. 	}
  61. }
Success #stdin #stdout 0.08s 37256KB
comments (?)
stdin 


			

					
			
			

				
	
		
		
	
		
		 stdout
			
	

		
matched: '2'
matched: '1 AND 2'
matched: '12 OR 234'
matched: '(1) AND (2)'
matched: '(((1)) AND (2))'
matched: '1 AND 2 AND 3'
matched: '1 AND (2 OR (3 AND 4))'
matched: '1 AND (2 OR 3) AND 4'
matched: ' ( 1    AND ( 2 OR  ( 3 AND    4 )  )'
matched: '((1 AND 7) OR 6) AND ((2 AND 5) OR (3 AND 4))'
matched: '(1)'
matched: '(((1)))'
failed:  '1 2'
failed:  '1(2)'
failed:  '(1)(2)'
failed:  'AND'
failed:  '1 AND'
failed:  '(1 AND 2'
failed:  '1 AND 2)'
failed:  '1 (AND) 2'
failed:  '(1 AND 2))'
failed:  '(1) AND 2)'
failed:  '(1)() AND (2)'
failed:  '((1 AND 7) OR 6) AND (2 AND 5) OR (3 AND 4))'
failed:  '((1 AND 7) OR 6) AND ((2 AND 5 OR (3 AND 4))'
failed:  ''


	

		
	 
	
	
			

					
			
			
			
			
			
			
			
			

			
			
			
		

	
		
		

			


			                        
			
			

				

	
					
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language:

						
C# (gmcs 5.20.1)

					

					

						
created:
								
						
12 years ago

					

					

						
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